A fork of Gitea (see branch `mj`) adding Majority Judgment Polls 𐄷 over Issues and Merge Requests. https://git.mieuxvoter.fr
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// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package mirror
import (
"context"
"fmt"
"net/url"
"strconv"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/sync"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
// mirrorQueue holds an UniqueQueue object of the mirror
var mirrorQueue = sync.NewUniqueQueue(setting.Repository.MirrorQueueLength)
func readAddress(m *models.Mirror) {
if len(m.Address) > 0 {
return
}
var err error
m.Address, err = remoteAddress(m.Repo.RepoPath())
if err != nil {
log.Error("remoteAddress: %v", err)
}
}
func remoteAddress(repoPath string) (string, error) {
var cmd *git.Command
err := git.LoadGitVersion()
if err != nil {
return "", err
}
if git.CheckGitVersionAtLeast("2.7") == nil {
cmd = git.NewCommand("remote", "get-url", "origin")
} else {
cmd = git.NewCommand("config", "--get", "remote.origin.url")
}
result, err := cmd.RunInDir(repoPath)
if err != nil {
if strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return "", nil
}
return "", err
}
if len(result) > 0 {
return result[:len(result)-1], nil
}
return "", nil
}
// sanitizeOutput sanitizes output of a command, replacing occurrences of the
// repository's remote address with a sanitized version.
func sanitizeOutput(output, repoPath string) (string, error) {
remoteAddr, err := remoteAddress(repoPath)
if err != nil {
// if we're unable to load the remote address, then we're unable to
// sanitize.
return "", err
}
return util.SanitizeMessage(output, remoteAddr), nil
}
// AddressNoCredentials returns mirror address from Git repository config without credentials.
func AddressNoCredentials(m *models.Mirror) string {
readAddress(m)
u, err := url.Parse(m.Address)
if err != nil {
// this shouldn't happen but just return it unsanitised
return m.Address
}
u.User = nil
return u.String()
}
// UpdateAddress writes new address to Git repository and database
func UpdateAddress(m *models.Mirror, addr string) error {
repoPath := m.Repo.RepoPath()
// Remove old origin
_, err := git.NewCommand("remote", "rm", "origin").RunInDir(repoPath)
if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return err
}
_, err = git.NewCommand("remote", "add", "origin", "--mirror=fetch", addr).RunInDir(repoPath)
if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return err
}
if m.Repo.HasWiki() {
wikiPath := m.Repo.WikiPath()
wikiRemotePath := repo_module.WikiRemoteURL(addr)
// Remove old origin of wiki
_, err := git.NewCommand("remote", "rm", "origin").RunInDir(wikiPath)
if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return err
}
_, err = git.NewCommand("remote", "add", "origin", "--mirror=fetch", wikiRemotePath).RunInDir(wikiPath)
if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return err
}
}
m.Repo.OriginalURL = addr
return models.UpdateRepositoryCols(m.Repo, "original_url")
}
// gitShortEmptySha Git short empty SHA
const gitShortEmptySha = "0000000"
// mirrorSyncResult contains information of a updated reference.
// If the oldCommitID is "0000000", it means a new reference, the value of newCommitID is empty.
// If the newCommitID is "0000000", it means the reference is deleted, the value of oldCommitID is empty.
type mirrorSyncResult struct {
refName string
oldCommitID string
newCommitID string
}
// parseRemoteUpdateOutput detects create, update and delete operations of references from upstream.
func parseRemoteUpdateOutput(output string) []*mirrorSyncResult {
results := make([]*mirrorSyncResult, 0, 3)
lines := strings.Split(output, "\n")
for i := range lines {
// Make sure reference name is presented before continue
idx := strings.Index(lines[i], "-> ")
if idx == -1 {
continue
}
refName := lines[i][idx+3:]
switch {
case strings.HasPrefix(lines[i], " * "): // New reference
if strings.HasPrefix(lines[i], " * [new tag]") {
refName = git.TagPrefix + refName
} else if strings.HasPrefix(lines[i], " * [new branch]") {
refName = git.BranchPrefix + refName
}
results = append(results, &mirrorSyncResult{
refName: refName,
oldCommitID: gitShortEmptySha,
})
case strings.HasPrefix(lines[i], " - "): // Delete reference
results = append(results, &mirrorSyncResult{
refName: refName,
newCommitID: gitShortEmptySha,
})
case strings.HasPrefix(lines[i], " + "): // Force update
if idx := strings.Index(refName, " "); idx > -1 {
refName = refName[:idx]
}
delimIdx := strings.Index(lines[i][3:], " ")
if delimIdx == -1 {
log.Error("SHA delimiter not found: %q", lines[i])
continue
}
shas := strings.Split(lines[i][3:delimIdx+3], "...")
if len(shas) != 2 {
log.Error("Expect two SHAs but not what found: %q", lines[i])
continue
}
results = append(results, &mirrorSyncResult{
refName: refName,
oldCommitID: shas[0],
newCommitID: shas[1],
})
case strings.HasPrefix(lines[i], " "): // New commits of a reference
delimIdx := strings.Index(lines[i][3:], " ")
if delimIdx == -1 {
log.Error("SHA delimiter not found: %q", lines[i])
continue
}
shas := strings.Split(lines[i][3:delimIdx+3], "..")
if len(shas) != 2 {
log.Error("Expect two SHAs but not what found: %q", lines[i])
continue
}
results = append(results, &mirrorSyncResult{
refName: refName,
oldCommitID: shas[0],
newCommitID: shas[1],
})
default:
log.Warn("parseRemoteUpdateOutput: unexpected update line %q", lines[i])
}
}
return results
}
// runSync returns true if sync finished without error.
func runSync(m *models.Mirror) ([]*mirrorSyncResult, bool) {
repoPath := m.Repo.RepoPath()
wikiPath := m.Repo.WikiPath()
timeout := time.Duration(setting.Git.Timeout.Mirror) * time.Second
log.Trace("SyncMirrors [repo: %-v]: running git remote update...", m.Repo)
gitArgs := []string{"remote", "update"}
if m.EnablePrune {
gitArgs = append(gitArgs, "--prune")
}
stdoutBuilder := strings.Builder{}
stderrBuilder := strings.Builder{}
if err := git.NewCommand(gitArgs...).
SetDescription(fmt.Sprintf("Mirror.runSync: %s", m.Repo.FullName())).
RunInDirTimeoutPipeline(timeout, repoPath, &stdoutBuilder, &stderrBuilder); err != nil {
stdout := stdoutBuilder.String()
stderr := stderrBuilder.String()
// sanitize the output, since it may contain the remote address, which may
// contain a password
stderrMessage, sanitizeErr := sanitizeOutput(stderr, repoPath)
if sanitizeErr != nil {
log.Error("sanitizeOutput failed on stderr: %v", sanitizeErr)
log.Error("Failed to update mirror repository %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdout, stderr, err)
return nil, false
}
stdoutMessage, err := sanitizeOutput(stdout, repoPath)
if err != nil {
log.Error("sanitizeOutput failed: %v", sanitizeErr)
log.Error("Failed to update mirror repository %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdout, stderrMessage, err)
return nil, false
}
log.Error("Failed to update mirror repository %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdoutMessage, stderrMessage, err)
desc := fmt.Sprintf("Failed to update mirror repository '%s': %s", repoPath, stderrMessage)
if err = models.CreateRepositoryNotice(desc); err != nil {
log.Error("CreateRepositoryNotice: %v", err)
}
return nil, false
}
output := stderrBuilder.String()
gitRepo, err := git.OpenRepository(repoPath)
if err != nil {
log.Error("OpenRepository: %v", err)
return nil, false
}
log.Trace("SyncMirrors [repo: %-v]: syncing releases with tags...", m.Repo)
if err = repo_module.SyncReleasesWithTags(m.Repo, gitRepo); err != nil {
gitRepo.Close()
log.Error("Failed to synchronize tags to releases for repository: %v", err)
}
gitRepo.Close()
log.Trace("SyncMirrors [repo: %-v]: updating size of repository", m.Repo)
if err := m.Repo.UpdateSize(models.DefaultDBContext()); err != nil {
log.Error("Failed to update size for mirror repository: %v", err)
}
if m.Repo.HasWiki() {
log.Trace("SyncMirrors [repo: %-v Wiki]: running git remote update...", m.Repo)
stderrBuilder.Reset()
stdoutBuilder.Reset()
if err := git.NewCommand("remote", "update", "--prune").
SetDescription(fmt.Sprintf("Mirror.runSync Wiki: %s ", m.Repo.FullName())).
RunInDirTimeoutPipeline(timeout, wikiPath, &stdoutBuilder, &stderrBuilder); err != nil {
stdout := stdoutBuilder.String()
stderr := stderrBuilder.String()
// sanitize the output, since it may contain the remote address, which may
// contain a password
stderrMessage, sanitizeErr := sanitizeOutput(stderr, repoPath)
if sanitizeErr != nil {
log.Error("sanitizeOutput failed on stderr: %v", sanitizeErr)
log.Error("Failed to update mirror repository wiki %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdout, stderr, err)
return nil, false
}
stdoutMessage, err := sanitizeOutput(stdout, repoPath)
if err != nil {
log.Error("sanitizeOutput failed: %v", sanitizeErr)
log.Error("Failed to update mirror repository wiki %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdout, stderrMessage, err)
return nil, false
}
log.Error("Failed to update mirror repository wiki %v:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdoutMessage, stderrMessage, err)
desc := fmt.Sprintf("Failed to update mirror repository wiki '%s': %s", wikiPath, stderrMessage)
if err = models.CreateRepositoryNotice(desc); err != nil {
log.Error("CreateRepositoryNotice: %v", err)
}
return nil, false
}
log.Trace("SyncMirrors [repo: %-v Wiki]: git remote update complete", m.Repo)
}
log.Trace("SyncMirrors [repo: %-v]: invalidating mirror branch caches...", m.Repo)
branches, _, err := repo_module.GetBranches(m.Repo, 0, 0)
if err != nil {
log.Error("GetBranches: %v", err)
return nil, false
}
for _, branch := range branches {
cache.Remove(m.Repo.GetCommitsCountCacheKey(branch.Name, true))
}
m.UpdatedUnix = timeutil.TimeStampNow()
return parseRemoteUpdateOutput(output), true
}
// Address returns mirror address from Git repository config without credentials.
func Address(m *models.Mirror) string {
readAddress(m)
return util.SanitizeURLCredentials(m.Address, false)
}
// Username returns the mirror address username
func Username(m *models.Mirror) string {
readAddress(m)
u, err := url.Parse(m.Address)
if err != nil {
// this shouldn't happen but if it does return ""
return ""
}
return u.User.Username()
}
// Password returns the mirror address password
func Password(m *models.Mirror) string {
readAddress(m)
u, err := url.Parse(m.Address)
if err != nil {
// this shouldn't happen but if it does return ""
return ""
}
password, _ := u.User.Password()
return password
}
// Update checks and updates mirror repositories.
func Update(ctx context.Context) error {
log.Trace("Doing: Update")
if err := models.MirrorsIterate(func(idx int, bean interface{}) error {
m := bean.(*models.Mirror)
if m.Repo == nil {
log.Error("Disconnected mirror repository found: %d", m.ID)
return nil
}
select {
case <-ctx.Done():
return fmt.Errorf("Aborted")
default:
mirrorQueue.Add(m.RepoID)
return nil
}
}); err != nil {
log.Trace("Update: %v", err)
return err
}
log.Trace("Finished: Update")
return nil
}
// SyncMirrors checks and syncs mirrors.
// FIXME: graceful: this should be a persistable queue
func SyncMirrors(ctx context.Context) {
// Start listening on new sync requests.
for {
select {
case <-ctx.Done():
mirrorQueue.Close()
return
case repoID := <-mirrorQueue.Queue():
syncMirror(repoID)
}
}
}
func syncMirror(repoID string) {
log.Trace("SyncMirrors [repo_id: %v]", repoID)
defer func() {
err := recover()
if err == nil {
return
}
// There was a panic whilst syncMirrors...
log.Error("PANIC whilst syncMirrors[%s] Panic: %v\nStacktrace: %s", repoID, err, log.Stack(2))
}()
mirrorQueue.Remove(repoID)
id, _ := strconv.ParseInt(repoID, 10, 64)
m, err := models.GetMirrorByRepoID(id)
if err != nil {
log.Error("GetMirrorByRepoID [%s]: %v", repoID, err)
return
}
log.Trace("SyncMirrors [repo: %-v]: Running Sync", m.Repo)
results, ok := runSync(m)
if !ok {
return
}
log.Trace("SyncMirrors [repo: %-v]: Scheduling next update", m.Repo)
m.ScheduleNextUpdate()
if err = models.UpdateMirror(m); err != nil {
log.Error("UpdateMirror [%s]: %v", repoID, err)
return
}
var gitRepo *git.Repository
if len(results) == 0 {
log.Trace("SyncMirrors [repo: %-v]: no branches updated", m.Repo)
} else {
log.Trace("SyncMirrors [repo: %-v]: %d branches updated", m.Repo, len(results))
gitRepo, err = git.OpenRepository(m.Repo.RepoPath())
if err != nil {
log.Error("OpenRepository [%d]: %v", m.RepoID, err)
return
}
defer gitRepo.Close()
if ok := checkAndUpdateEmptyRepository(m, gitRepo, results); !ok {
return
}
}
for _, result := range results {
// Discard GitHub pull requests, i.e. refs/pull/*
if strings.HasPrefix(result.refName, "refs/pull/") {
continue
}
tp, _ := git.SplitRefName(result.refName)
// Create reference
if result.oldCommitID == gitShortEmptySha {
if tp == git.TagPrefix {
tp = "tag"
} else if tp == git.BranchPrefix {
tp = "branch"
}
commitID, err := gitRepo.GetRefCommitID(result.refName)
if err != nil {
log.Error("gitRepo.GetRefCommitID [repo_id: %s, ref_name: %s]: %v", m.RepoID, result.refName, err)
continue
}
notification.NotifySyncPushCommits(m.Repo.MustOwner(), m.Repo, &repo_module.PushUpdateOptions{
RefFullName: result.refName,
OldCommitID: git.EmptySHA,
NewCommitID: commitID,
}, repo_module.NewPushCommits())
notification.NotifySyncCreateRef(m.Repo.MustOwner(), m.Repo, tp, result.refName)
continue
}
// Delete reference
if result.newCommitID == gitShortEmptySha {
notification.NotifySyncDeleteRef(m.Repo.MustOwner(), m.Repo, tp, result.refName)
continue
}
// Push commits
oldCommitID, err := git.GetFullCommitID(gitRepo.Path, result.oldCommitID)
if err != nil {
log.Error("GetFullCommitID [%d]: %v", m.RepoID, err)
continue
}
newCommitID, err := git.GetFullCommitID(gitRepo.Path, result.newCommitID)
if err != nil {
log.Error("GetFullCommitID [%d]: %v", m.RepoID, err)
continue
}
commits, err := gitRepo.CommitsBetweenIDs(newCommitID, oldCommitID)
if err != nil {
log.Error("CommitsBetweenIDs [repo_id: %d, new_commit_id: %s, old_commit_id: %s]: %v", m.RepoID, newCommitID, oldCommitID, err)
continue
}
theCommits := repo_module.ListToPushCommits(commits)
if len(theCommits.Commits) > setting.UI.FeedMaxCommitNum {
theCommits.Commits = theCommits.Commits[:setting.UI.FeedMaxCommitNum]
}
theCommits.CompareURL = m.Repo.ComposeCompareURL(oldCommitID, newCommitID)
notification.NotifySyncPushCommits(m.Repo.MustOwner(), m.Repo, &repo_module.PushUpdateOptions{
RefFullName: result.refName,
OldCommitID: oldCommitID,
NewCommitID: newCommitID,
}, theCommits)
}
log.Trace("SyncMirrors [repo: %-v]: done notifying updated branches/tags - now updating last commit time", m.Repo)
// Get latest commit date and update to current repository updated time
commitDate, err := git.GetLatestCommitTime(m.Repo.RepoPath())
if err != nil {
log.Error("GetLatestCommitDate [%d]: %v", m.RepoID, err)
return
}
if err = models.UpdateRepositoryUpdatedTime(m.RepoID, commitDate); err != nil {
log.Error("Update repository 'updated_unix' [%d]: %v", m.RepoID, err)
return
}
log.Trace("SyncMirrors [repo: %-v]: Successfully updated", m.Repo)
}
func checkAndUpdateEmptyRepository(m *models.Mirror, gitRepo *git.Repository, results []*mirrorSyncResult) bool {
if !m.Repo.IsEmpty {
return true
}
hasDefault := false
hasMaster := false
hasMain := false
defaultBranchName := m.Repo.DefaultBranch
if len(defaultBranchName) == 0 {
defaultBranchName = setting.Repository.DefaultBranch
}
firstName := ""
for _, result := range results {
if strings.HasPrefix(result.refName, "refs/pull/") {
continue
}
tp, name := git.SplitRefName(result.refName)
if len(tp) > 0 && tp != git.BranchPrefix {
continue
}
if len(firstName) == 0 {
firstName = name
}
hasDefault = hasDefault || name == defaultBranchName
hasMaster = hasMaster || name == "master"
hasMain = hasMain || name == "main"
}
if len(firstName) > 0 {
if hasDefault {
m.Repo.DefaultBranch = defaultBranchName
} else if hasMaster {
m.Repo.DefaultBranch = "master"
} else if hasMain {
m.Repo.DefaultBranch = "main"
} else {
m.Repo.DefaultBranch = firstName
}
// Update the git repository default branch
if err := gitRepo.SetDefaultBranch(m.Repo.DefaultBranch); err != nil {
if !git.IsErrUnsupportedVersion(err) {
log.Error("Failed to update default branch of underlying git repository %-v. Error: %v", m.Repo, err)
desc := fmt.Sprintf("Failed to uupdate default branch of underlying git repository '%s': %v", m.Repo.RepoPath(), err)
if err = models.CreateRepositoryNotice(desc); err != nil {
log.Error("CreateRepositoryNotice: %v", err)
}
return false
}
}
m.Repo.IsEmpty = false
// Update the is empty and default_branch columns
if err := models.UpdateRepositoryCols(m.Repo, "default_branch", "is_empty"); err != nil {
log.Error("Failed to update default branch of repository %-v. Error: %v", m.Repo, err)
desc := fmt.Sprintf("Failed to uupdate default branch of repository '%s': %v", m.Repo.RepoPath(), err)
if err = models.CreateRepositoryNotice(desc); err != nil {
log.Error("CreateRepositoryNotice: %v", err)
}
return false
}
}
return true
}
// InitSyncMirrors initializes a go routine to sync the mirrors
func InitSyncMirrors() {
go graceful.GetManager().RunWithShutdownContext(SyncMirrors)
}
// StartToMirror adds repoID to mirror queue
func StartToMirror(repoID int64) {
go mirrorQueue.Add(repoID)
}